Quote from: Lucky - Luciano on January 14, 2017, 07:06:51 PM

Quote from: jstefanop on January 14, 2017, 06:39:18 PM

Quote from: Etherion on January 14, 2017, 02:27:34 PM

Quote from: Heatspeed on January 14, 2017, 01:09:39 PM

I have 2 Rx480 and 1 Rx470

Working perfect with one card directly plugged into pcie x16 and 2 usb powered risers

Now I bought another Rx480 with usb riser

So my problem is with 4 cards plugged into Mother board PC (Win 10) does not boot...
Fans are spinning on all 4 cards
Anybody know why??

Maybe its because of PSU?
Its 750 Watt

I have to undervotlage my 4xRX480 4GB to run from a 1000W PSU. Really can't see how 750W would have a chance.

lol I run 8x RX470s from a 850 watt PSU Wink

Why do not you tell people how much you reduce the clock speed graphics cards? Grin

1150/1900 obviously custom bios undervolted etc. Still pulls 890 at the wall, but the point of my post is as long as you know how to balance rails and tune everything right there is no reason you can't run a PSU at its max capacity.